EP0881501B1 - Functional testing device for an electronically controlled regulation system in a motor vehicle after a production process - Google Patents

Functional testing device for an electronically controlled regulation system in a motor vehicle after a production process Download PDF

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Publication number
EP0881501B1
EP0881501B1 EP98106398A EP98106398A EP0881501B1 EP 0881501 B1 EP0881501 B1 EP 0881501B1 EP 98106398 A EP98106398 A EP 98106398A EP 98106398 A EP98106398 A EP 98106398A EP 0881501 B1 EP0881501 B1 EP 0881501B1
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EP
European Patent Office
Prior art keywords
motor vehicle
electronically controlled
vehicle
test
checked
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Expired - Lifetime
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EP98106398A
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German (de)
French (fr)
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EP0881501A3 (en
EP0881501A2 (en
Inventor
Gerd Huber
Werner Bauer
Anton Haas
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP0881501A3 publication Critical patent/EP0881501A3/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Definitions

  • the invention relates to a device for functional testing an electronically controlled control system in a motor vehicle after a manufacturing process of the motor vehicle in a production plant.
  • the vehicle can actually be started and driven in a realistic manner (vehicle operation same driving) or dragged or defined in a conveyor belt to be moved.
  • driving or vehicle operation will be the data of this control system detected and stored in a test system.
  • the defined vehicle operation for example, during a in the Production plant to be made anyway route to be covered.
  • certain Driving parameters such as sections, curve radii, temperatures etc., and / or operating instructions, such.
  • This defined vehicle operation will be the same for all vehicles given, so that the detected and stored data of the individual Control systems of different vehicles are comparable.
  • the evaluation This data may be stored at any suitable location, e.g. B. at one Test completion computer, done. This means that the evaluation of the detected and stored data in parallel with other production processes also only after the defined vehicle operation during the réelleavy Track be made for the sake of saving time can.
  • test system for the detection and Storage of the data of the control system with the control system to be checked be connectable to the motor vehicle, d. H. during the test drive be located in the vehicle, or be located outside of the vehicle and during the test drive with the control system to be checked communicate wirelessly.
  • she shows a device according to the invention for functional testing of a electronically controlled control system in a motor vehicle by means of a Testing device that is in the vehicle during the test drive or the alternative during the test drive from outside the motor vehicle wirelessly communicates with the control system to be checked.
  • a motor vehicle 1 in a motor vehicle 1, several electronically controlled Installed control systems. These electronically controlled control systems are each a control unit 2 to 5 associated with each other by means of a data bus 6, z. B. a CAN bus connected.
  • the Vehicle 1 is located in a production plant at the end of all Manufacturing operations of the motor vehicle and still has in the production plant to cover a distance x. During this time in the production plant Route x takes z.
  • a driver or an automatic transport device the motor vehicle 1 in operation.
  • Driving operation or vehicle operation specified for example Driving parameters, such as kick-down, full braking or fast steering movements, prescribed for a given distance.
  • the defined vehicle operation is specified in such a way that the electronic to be checked controlled control system, z. B.
  • control unit 3 Control system associated with the control unit 3 Control system. If, for example, this is assigned to the control unit 3 electronically controlled control system becomes an automatic transmission the defined vehicle operation preferably predetermined such that during the track to be covered x switching operations are performed have to. In contrast, is an electronically controlled control system for automatic Damper control provided, is preferably the defined Vehicle operation predetermined so that a compression and rebound of the body provoked against the wheels.
  • the activated by the defined vehicle operation control systems or their control units output via the data bus 6 data via a Test system 7a or 7b can be detected and stored.
  • This is the test system 7a, for example, during the test drive in the motor vehicle present and either directly to the control unit of a to be checked Control system connected or indirectly via the data bus 6 with this Control unit connectable.
  • the communication between the Test systems 7a or 7b and a defined control system or its Control unit is, for example, via the electronically controlled control systems assigned identification codes made.
  • the measured Data can be z. B. processed in a mathematical vehicle model for example, deviations from individual sensors from each other to recognize. A statistical evaluation of all vehicle measurements enables early detection of faulty trends and allows a closer interpretation of the test specifications.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Funktionsüberprüfung eines elektronisch gesteuerten Regelsystems in einem Kraftfahrzeug nach einem Fertigungsvorgang des Kraftfahrzeugs in einem Produktionswerk.The invention relates to a device for functional testing an electronically controlled control system in a motor vehicle after a manufacturing process of the motor vehicle in a production plant.

Es ist bekannt, ein Kraftfahrzeug in einem Produktionswerk nach einzelnen Fertigungsvorgängen oder am Bandende, d. h. nach Durchlaufen sämtlicher Fertigungsvorgänge, zumindest teilweise in Betrieb zu nehmen. Hierbei werden im Stillstand des Kraftfahrzeugs insbesondere die Brennkraftmaschine gestartet, die Funktionsfähigkeit sämtlicher Lampen überprüft, sowie andere Bedienelemente betätigt, um die ihnen zugeordneten Funktionen zu testen.It is known, a motor vehicle in a production plant by individual Manufacturing operations or at the end of the tape, d. H. after passing through all Manufacturing operations, at least partially in operation. Here are at standstill of the motor vehicle, in particular the internal combustion engine started to check the functionality of all lamps, as well as others Controls pressed to test their assigned functions.

Zum technischen Hintergrund hierzu wird beispielsweise auf die DE 296 16 803 U, die EP 0 221 383 A, die EP 0 718 614 A und das Japanische Patent Abstract JP 62 094443 A hingewiesen.For technical background, for example, to DE 296 16 803 U, EP 0 221 383 A, EP 0 718 614 A and the Japanese Patent Abstract JP 62 094443 A pointed.

Zur Funktionsüberprüfung elektronisch gesteuerter Regelsysteme wird zum Teil lediglich sichergestellt, daß keine Fehlermeldungen, die beispielsweise über Alarmlampen oder Diagnosegeräte abrufbar sind, von den den elektronisch gesteuerten Regelsystemen zugeordneten Steuergeräten ausgegeben werden. Eine derartige Funktionsüberprüfung ist jedoch aufgrund der Komplexität der Funktionen, die ein elektronisch gesteuertes Regelsystem wähwährend der Fahrt durchzuführen hat, nicht ausreichend. Daher wird die Funktionsfähigkeit derartiger Regelsysteme derzeit auch mittels separater, fest installierter Prüfstände getestet. Derartige fest installierte Prüfstände sind mit hohen Kosten und großem Platzbedarf verbunden. Darüber hinaus erfordert die Überprüfung jedes einzelnen Regelsystems durch die Fahrt zum Prüfstand, durch die Initialisierung, durch die Systemprüfung und durch die Fahrt vom Prüfstand zurück eine beachtliche Prüfzeit. Weiterhin ist die Integration neuer Umfänge in die bestehende Prüflandschaft aufgrund von Änderungen in den Regelsystemen mit erheblichen baulichen Maßnahmen verbunden.To check the function of electronically controlled control systems is the Part only ensures that no error messages, for example are available via alarm lamps or diagnostic equipment, of which the electronic output controlled control systems associated control devices become. However, such a functional check is due to the complexity of the functions that an electronically controlled control system allows the ride is not sufficient. Therefore, the Functionality of such control systems currently also by means of separate, permanently installed test benches. Such permanently installed test stands are associated with high costs and large space requirements. Furthermore requires the review of each control system by the ride to the test bench, through the initialization, through the system test and through the drive from the test bench back a considerable test time. Furthermore, the Integration of new scopes into the existing test environment due to Changes in the control systems with considerable structural measures connected.

Es ist daher Aufgabe der Erfindung, eine Vorrichtung zur Funktionsüberprüfung elektronisch gesteuerter Regelsysteme in Kraftfahrzeugen eingangs genannter Art trotz Sicherstellung einer ausreichenden Überprüfung der Funktionsfähigkeit zu vereinfachen.It is therefore an object of the invention to provide a device for functional testing electronically controlled control systems in motor vehicles at the beginning of this kind despite ensuring sufficient verification of Functionality to simplify.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the characterizing features of the claim 1 solved.

Erfindungsgemäß wird für die Dauer eines definierten Fahrzeugbetriebs während einer im Produktionswerk zurückzulegenden Strecke das zu überprüfende elektronisch gesteuerte Regelsystem nach seinem Einbau in das Kraftfahrzeug in Betrieb genommen. Hierbei kann das Fahrzeug tatsächlich in realistischer Weise gestartet und gefahren werden (Fahrzeugbetrieb gleich Fahrbetrieb) oder auch geschleppt oder in einem Transportband definiert bewegt werden. Während des Fahr- bzw. Fahrzeugbetriebs werden die Daten dieses Regelsystems in einem Prüfsystem erfaßt und abgespeichert. Der definierte Fahrzeugbetrieb kann beispielsweise während einer im Produktionswerk ohnehin zurückzulegenden Strecke vorgenommen werden. Für den definierten Fahrzeugbetrieb werden beispielsweise bestimmte Fahrparameter, wie Streckenabschnitte, Kurvenradien, Temperaturen usw., und/oder Bedienvorschriften, wie z. B. schnelles Durchtreten des Gaspedals, Betätigen der Bremse, Lenkbewegungen, Gangschaltungen usw., vorgegeben. Dieser definierte Fahrzeugbetrieb wird für alle Fahrzeuge gleich vorgegeben, so daß die erfaßten und abgespeicherten Daten der einzelnen Regelsysteme unterschiedlicher Fahrzeuge vergleichbar sind. Die Auswertung dieser Daten kann an beliebiger geeigneter Stelle, z. B. an einem Prüfabschlußrechner, erfolgen. Dies bedeutet, daß die Auswertung der erfaßten und abgespeicherten Daten parallel zu weiteren Fertigungsvorgängen auch erst nach dem definierten Fahrzeugbetrieb während der zurückzulegenden Strecke aus Gründen der Zeitersparnis vorgenommen werden kann.According to the invention for the duration of a defined vehicle operation During a route to be traveled in the production plant the to be checked electronically controlled control system after its installation in the Motor vehicle put into operation. In this case, the vehicle can actually be started and driven in a realistic manner (vehicle operation same driving) or dragged or defined in a conveyor belt to be moved. During driving or vehicle operation will be the data of this control system detected and stored in a test system. The defined vehicle operation, for example, during a in the Production plant to be made anyway route to be covered. For the defined vehicle operation, for example, certain Driving parameters, such as sections, curve radii, temperatures etc., and / or operating instructions, such. B. rapid passage of the accelerator pedal, Actuation of the brake, steering movements, gear changes, etc., specified. This defined vehicle operation will be the same for all vehicles given, so that the detected and stored data of the individual Control systems of different vehicles are comparable. The evaluation This data may be stored at any suitable location, e.g. B. at one Test completion computer, done. This means that the evaluation of the detected and stored data in parallel with other production processes also only after the defined vehicle operation during the zurückzulegenden Track be made for the sake of saving time can.

Vorteilhafte Weiterbildungen der Erfindung sind die Gegenstände der Unteransprüche 2 und 3. Demnach kann das Prüfsystem zur Erfassung und Speicherung der Daten des Regelsystems mit dem zu überprüfenden Regelsystem kraftfahrzeugseitig verbindbar sein, d. h. sich während der Meßfahrt im Fahrzeug befinden, oder außerhalb des Kraftfahrzeugs angeordnet sein und dabei während der Meßfahrt mit dem zu überprüfenden Regelsystem drahtlos kommunizieren.Advantageous developments of the invention are the subject of the dependent claims 2 and 3. Accordingly, the test system for the detection and Storage of the data of the control system with the control system to be checked be connectable to the motor vehicle, d. H. during the test drive be located in the vehicle, or be located outside of the vehicle and during the test drive with the control system to be checked communicate wirelessly.

Durch diese erfindungsgemäße Funktionsüberprüfung werden zum einen separate Prüfstände eingespart und zum anderen durch einen definierbaren Fahrzeugbetrieb an die Realität angenäherte Betriebszustände erzeugt, während die elektronisch gesteuerten Regelsysteme aktiviert werden.By means of this functional check according to the invention, on the one hand saved on separate test benches and on the other by a definable Vehicle operation generates operating states approximated to reality, while the electronically controlled control systems are activated.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Sie zeigt eine erfindungsgemäße Vorrichtung zur Funktionsüberprüfung eines elektronisch gesteuerten Regelsystems in einem Kraftfahrzeug mittels eines Prüfgeräts, das sich während der Meßfahrt im Kraftfahrzeug befindet oder das alternativ während der Meßfahrt von außerhalb des Kraftfahrzeugs drahtlos mit dem zu überprüfenden Regelsystem kommuniziert. In the drawing, an embodiment of the invention is shown. she shows a device according to the invention for functional testing of a electronically controlled control system in a motor vehicle by means of a Testing device that is in the vehicle during the test drive or the alternative during the test drive from outside the motor vehicle wirelessly communicates with the control system to be checked.

In der Zeichnung sind in einem Kraftfahrzeug 1 mehrere elektronisch gesteuerte Regelsysteme verbaut. Diesen elektronisch gesteuerten Regelsystemen sind jeweils ein Steuergerät 2 bis 5 zugeordnet, die untereinander mittels eines Datenbusses 6, z. B. eines CAN-Busses, verbunden sind. Das Fahrzeug 1 befindet sich in einem Produktionswerk am Ende sämtlicher Fertigungsvorgänge des Kraftfahrzeugs und hat im Produktionswerk noch eine Strecke x zurückzulegen. Während dieser im Produktionswerk zurückzulegenden Strecke x nimmt z. B. ein Fahrer oder eine automatische Transportvorrichtung das Kraftfahrzeug 1 in Betrieb. Hierbei wird ein definierter Fahrbetrieb bzw. Fahrzeugbetrieb vorgegeben. Beispielsweise werden Fahrparameter, wie kick-down, Vollbremsung oder schnelle Lenkbewegungen, für eine vorgegebene Teilstrecke vorgeschrieben. Der definierte Fahrzeugbetrieb wird in der Weise vorgegeben, daß das zu überprüfende elektronisch gesteuerte Regelsystem, z. B. das dem Steuergerät 3 zugeordnete Regelsystem, aktiviert wird. Ist beispielsweise das dem Steuergerät 3 zugeordnete elektronisch gesteuerte Regelsystem ein Automatikgetriebe, wird der definierte Fahrzeugbetrieb vorzugsweise derart vorgegeben, daß während der zurückzulegenden Strecke x Schaltvorgänge ausgeführt werden müssen. Ist dagegen ein elektronisch gesteuertes Regelsystem zur automatischen Dämpferregelung vorgesehen, wird vorzugsweise der definierte Fahrzeugbetrieb so vorgegeben, daß ein Ein- und Ausfedern der Karosserie gegenüber den Rädern provoziert wird.In the drawing, in a motor vehicle 1, several electronically controlled Installed control systems. These electronically controlled control systems are each a control unit 2 to 5 associated with each other by means of a data bus 6, z. B. a CAN bus connected. The Vehicle 1 is located in a production plant at the end of all Manufacturing operations of the motor vehicle and still has in the production plant to cover a distance x. During this time in the production plant Route x takes z. As a driver or an automatic transport device the motor vehicle 1 in operation. This is a defined Driving operation or vehicle operation specified. For example Driving parameters, such as kick-down, full braking or fast steering movements, prescribed for a given distance. The defined vehicle operation is specified in such a way that the electronic to be checked controlled control system, z. B. associated with the control unit 3 Control system, is activated. If, for example, this is assigned to the control unit 3 electronically controlled control system becomes an automatic transmission the defined vehicle operation preferably predetermined such that during the track to be covered x switching operations are performed have to. In contrast, is an electronically controlled control system for automatic Damper control provided, is preferably the defined Vehicle operation predetermined so that a compression and rebound of the body provoked against the wheels.

Die durch den definierten Fahrzeugbetrieb aktivierten Regelsysteme bzw. deren Steuergeräte geben über den Datenbus 6 Daten aus, die über ein Prüfsystem 7a oder 7b erfaßt und abgespeichert werden können. Hierzu ist das Prüfsystem 7a beispielsweise während der Meßfahrt im Kraftfahrzeug vorhanden und entweder direkt an dem Steuergerät eines zu überprüfenden Regelsystems anschließbar oder indirekt über den Datenbus 6 mit diesem Steuergerät verbindbar. Alternativ hierzu ist ein Prüfsystem 7b zur Erfassung und Abspeicherung der Daten des zu überprüfenden aktivierten Regelsystems außerhalb des Kraftfahrzeugs, beispielsweise in einem Standsystem 8 angeordnet und kommuniziert, beispielsweise über Funk, drahtlos mit dem jeweils zu überprüfenden Regelsystem. Die Kommunikation zwischen den Prüfsystemen 7a oder 7b und einem definierten Regelsystem bzw. dessen Steuergerät wird beispielsweise über den elektronisch gesteuerten Regelsystemen zugeordneten Identifizierungscodes vorgenommen. Die gemessenen Daten können z. B. in einem mathematischen Fahrzeugmodell verarbeitet werden, um beispielsweise Abweichungen von einzelnen Sensoren voneinander zu erkennen. Eine statistische Bewertung aller Fahrzeug-Messungen ermöglicht eine frühzeitige Erkennung von Fehlertrends und erlaubt eine engere Auslegung der Prüfspezifikationen.The activated by the defined vehicle operation control systems or their control units output via the data bus 6 data via a Test system 7a or 7b can be detected and stored. This is the test system 7a, for example, during the test drive in the motor vehicle present and either directly to the control unit of a to be checked Control system connected or indirectly via the data bus 6 with this Control unit connectable. Alternatively, a test system 7b for detection and storing the data of the activated control system to be checked outside the motor vehicle, for example in a stand system 8 arranged and communicates, for example by radio, wirelessly with the each to be checked control system. The communication between the Test systems 7a or 7b and a defined control system or its Control unit is, for example, via the electronically controlled control systems assigned identification codes made. The measured Data can be z. B. processed in a mathematical vehicle model for example, deviations from individual sensors from each other to recognize. A statistical evaluation of all vehicle measurements enables early detection of faulty trends and allows a closer interpretation of the test specifications.

Durch dieses erfindungsgemäße Ausführungsbeispiel wird deutlich, daß die Notwendigkeit separater Prüfstände entfällt. Durch den Meßbetrieb während einer im Produktionswerk ohnehin zurückzulegenden Strecke erfordert eine Funktionsüberprüfung keinen zusätzlichen Zeitaufwand. Darüber hinaus wird die Prüfung der Funktionsfähigkeit im realistischen Fahrzeugbetrieb und nicht durch synthetisch simulierte Signale durchgeführt. Ergänzend wird darauf hingewiesen, daß das Verfahren zur erfindungsgemäßen Funktionsüberprüfung nicht nur in Produktionswerken sondern auch beim Kundendienst und in den Werkstätten angewendet werden kann.By this embodiment of the invention it is clear that the The need for separate test stands is eliminated. Through the measuring operation during a route to be traveled anyway in the production plant requires one Function check no additional time. In addition, will the test of functionality in realistic vehicle operation and not performed by synthetically simulated signals. In addition will pointed out that the method for functional check according to the invention not only in production plants but also in customer service and can be applied in the workshops.

Claims (3)

  1. A method for the functional checking of an electronically controlled regulating system in a motor vehicle after a manufacturing process of the motor vehicle in a production works, characterised in that, for the duration of a defined vehicle operation for a distance (x) to be covered in the production works, the electronically controlled regulating system (2, 3, 4, 5) to be checked is put into operation after its installation in the motor vehicle (1), the defined vehicle operation being specified in such a way that the electronically controlled regulating system to be checked is activated, and in that data of this regulating system is collected in a testing system (7a; 7b) and stored.
  2. A method according to claim 1, characterised in that the testing system (7a) can be connected to the regulating system (2, 3, 4, 5) to be checked, on the vehicle side.
  3. A method according to claim 1, characterised in that the testing system (7b) is arranged outside the motor vehicle and communicates wirelessly with the regulating system (2, 3, 4, 5) to be checked.
EP98106398A 1997-05-27 1998-04-08 Functional testing device for an electronically controlled regulation system in a motor vehicle after a production process Expired - Lifetime EP0881501B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722188A DE19722188A1 (en) 1997-05-27 1997-05-27 Device for checking the function of an electronically controlled control system in a motor vehicle after a manufacturing process
DE19722188 1997-05-27

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EP0881501A2 EP0881501A2 (en) 1998-12-02
EP0881501A3 EP0881501A3 (en) 1999-05-26
EP0881501B1 true EP0881501B1 (en) 2005-11-09

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EP (1) EP0881501B1 (en)
DE (2) DE19722188A1 (en)
ES (1) ES2248861T3 (en)

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DE59813170D1 (en) 2005-12-15
EP0881501A3 (en) 1999-05-26
ES2248861T3 (en) 2006-03-16
DE19722188A1 (en) 1998-12-03
US5952565A (en) 1999-09-14
EP0881501A2 (en) 1998-12-02

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